Method and unit for end sealing elongated wrappings

Details Method and unit for end sealing elongated wrappings Method and unit for end sealing elongated wrappings

1996-04-12

1998-05-05

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563802, 156556, 156567, B32B 3100

Patent

active

057468729

ABSTRACT:
Elongated wrappings made of sheet material comprising a first metal component and a second heat-sealable component are end sealed by successively feeding the wrappings, by means of a conveyor, in a first given direction and along a given path through a sealing station; varying the traveling speed of the wrappings in relation to the conveyor at the sealing station; and induction heating, for a given length of time during a relative pause, the first component at the ends of each wrapping, to melt the second component.

REFERENCES:
patent: 2184280 (1939-12-01), Clark
patent: 2568794 (1951-09-01), Dieter
patent: 3462336 (1969-08-01), Leatherman
patent: 3864186 (1975-02-01), Balla
patent: 3923585 (1975-12-01), Vouillemin
patent: 4152566 (1979-05-01), Magerle
patent: 4248653 (1981-02-01), Gerber
patent: 4704509 (1987-11-01), Hilmersson
patent: 4829752 (1989-05-01), Focke et al.
patent: 4995223 (1991-02-01), Spatafora
patent: 5031380 (1991-07-01), Ueda

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